Island



(No Model.)

G. U. MEYER. SEAMLESS PLATED WIRE.

No. 441,886. Patented D60. 2, 1890 WITNESSES. .ZN YE N T UH UNITEDSTATES PATENT OFFICE.

eEoReE u. MEYER, or PROVIDENCE, RuooE ISLAND.

SEAMLESS PLATED WIRE.

SPECIFICATION forming part of Letters Patent No. 441,886, dated December2, 1890.

Application filed September 9, 1890. Serial No. 364,460. (No specimens.)

however, be made out of a sheet of what is To all whom, it may concern.-

Be it known that I, GEORGE U. MEYER, of Providence, in the county ofProvidence and State of Rhode Island, have invented a new and usefulImprovement in Seamless Plated Wire; and I hereby declare that thefollowing is a full, clear, and exact description of the sauna-referencebeing had to the accompanying drawings, forming part of thisspecification.

This invention has reference to an improvement in the process for makingingots, consisting of a core of inferior metal and a seamless outer tubeof superior or precious metal and drawing or rolling these ingots intoseamless plated wire.

The invention consists in cutting a disk from a sheet of plating metal,securing the disk to the end of the inferior metal forming the core,drawing the disk over the core to form the ingot, and then drawing orrolling the ingot into wire.

In the manufacture of ingots for seamless plated wire a tube hasheretofore been made of the precious metal, which was placed over thecore of inferior metal and secured to the same by the sweating or thesoldering process to form the ingot from which the wire was drawn orrolled.

The object of this invention is to draw the tube from a fiat sheet ofmetal at once over the core and secure the so-formed platingtube to thecore to form the ingot, or to roll or draw out the ingot into wire andsecure the seamless plating metal to the core of the wire at any stepdesired, subsequent to the drawing out of the wire.

Figure 1 is a sectional view of a core piece, to one end of which a diskof plating metal is secured by the screw-threaded draw-hook. Fig. 2 is asectional view of a core-piece provided with a screw-threaded extension,forming a draw-bar, to which a disk of plating metal is secured. Fig.3is a perspective view of the plating-disk, and Fig. 4- is a side view ofa piece of seamless plated wire.

In the drawings, 7 indicates the disk of plating metal provided with thecentral hole 8. The disk of plating metal 7 is made from a sheet ofprecious metal, when it is desired to secure the plating metal to thecore by the sweating process. The disk may,

In the preferred form indicated in the drawings the disk 7 is made up ofa sheet of inferior metal plated on one side with a thin sheet ofprecious metal and on the other side with a film of solder or metal thatwill fiow at a lower temperature than the precious metal. In Figs. 1 and2 the inferior metal is shown in section and indicated by the Fig. 9,the plate of precious metal shown by a heavy line by the figure 10, andthe surface plated with a solder or easier-flowing metal by the figure11..

12 indicates the cylindrical core of inferior metal, 13 thescrew-threaded extension of the core, 14: the drawing hook screwthreadedin the core 19, and 15 the nuts by which the plating-disk 7 is securedto the end of the core 12. v

In carrying out my invention I'cut from a sheet of plating metal,consisting either of precious metal, of precious metal covered on theface toward the core with an easier-flowing metal, of inferior metalcovered on one side with precious metal and on the other with a metalfusing at a lower temperature than the precious metal, or from any othersheet of metal or composition of metals desired, a circular disk 7 of adiameter greater than the diameter of the core 12. This disk I newsecure to the end of the core 12, preferably by'punching the hole 8through the center of the disk and securing the disk by the extension13, or the hook 1%, and the nut 15; but the disk 7 may be secured to theend of the core by solder in any other practical manner. I now draw thedisk wit-l1 the core through a series of holes in the draw-plate of anordinary draw-bench used for drawing rods and wire. The disk enters thesuccessive holes, which, commencing with a hole but little smaller indiameter than the disk, gradually diminish in diameter, and is graduallydrawn over the core until it covers the same, as is indicated in brokenlines in Figs. 1 and In the preferred form Icut the disk from a sheet ofmetal composed of a sheet of inferiormetal 9, plated on one side withthe precious metal 10 and on the opposite side with the easier-flowin gmetal or solder 11. I secure this disk to one end of the cylindricalcore 12, draw the disk over the core, as above described,in adraw-bench, rolls, or by any other suitable means, to form the ingot,and then draw or roll the ingot into the wire 16. (Shown in Fig. 4.)Theso-formed wire consists of asolid core and a seamless plating-tube ofprecious metal with a film of easier-flowing metal or solder between thecore and the plating metal. Itforms a solid rigid wire, which can beformed into any desired article for which plated wire is used, and, whenformed into chain-links or other similar articles in which the ends ofthe wire are required to be soldered together, or to some other metal,by placing a little flux at the end .or ends and heating the samesu-fficient to fuse the easier-flowing metal or solder, the parts willunite together by the internal solder, forming a strong and durableunion.

it is evident that if required the core 12 may be a tube, so that whendrawn out the wire will form a seamless plated tubular wire.

Having thus described my invention, I claim as new and desire to secureby Letters Patent- 1. The process herein described for making ingots forseamless plated wire, the same consisting in preparing a core ofinferior metal, securing a disk of plating metal to one end of the core,and drawing, rolling, or forming the outer portion of the disk over thecore, as described.

2. As a new article of manufacture, a seamless plated wire consisting ofa core of inferior metal, a seamless plating of precious metal, and afilm of easier-flowing metal or solder between the core and the plati-ng metal, as described.

GEORGE U. MEYER.

dr'itnesses:

J. A. MILLER, J12, HENRY J. MILLER.

